Seleukid Kingdom. Seleukeia on Tigris. Antiochos I Soter 281-261 BC. Tetradrachm AR( silver 29 mm., 16,49 g). Diademed head of Antiochos I to right / BAΣIΛEΩΣ ANTI-OXOY, Apollo, nude, seated left on omphalos, holding arrow in his right hand and leaning with his left on bow, to left and right, monograms. Near very fineSC 379.5c var. (differing right side monogram). SNG Spaer 296.